body, div, input {
    margin: 0;
    padding: 0;
}

body {
    background-color: #F5F5F5;
    font-size: 10px;
}

.login {
    width: 400px;
    height: 500px;
    margin: -250px 0 0 -200px;
    position: fixed;
    top: 50%;
    left: 50%;
    background-color: #FFF;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(3,3,3,.1);
}

.login_div {
    margin-top: -145px;
    margin-left: -151px;
    position: absolute;
    top: 50%;
    left: 50%
}

.login_form {
    width: 302px;
}

.login_form input {
    text-align: center;
    font-size: 1.6em;
    border-radius: 5px
}

.input_username {
    width: 220px;
    height: 40px;
    margin-bottom: 18px;
    border: 1px solid rgba(3,3,3,.1);
}

.input_password {
    width: 220px;
    height: 40px;
    margin-bottom: 30px;
    border: 1px solid rgba(3,3,3,.1);
}

.input_captcha {
    width: 140px;
    height: 40px;
    margin-bottom: 30px;
    border: 1px solid rgba(3,3,3,.1);
}

.input_submit {
    width: 302px;
    height: 42px;
    background-color: #777;
    color: #FFF;
    border: 1px solid rgba(3,3,3,.1);
    box-shadow: 0 0 20px rgba(3,3,3,.1);
}

.input_submit:hover {
    background-color: #888;
    cursor: pointer;
}

.captcha img{
    float: right;
    cursor: pointer;
}

label {
    font-size: 14px;
    font-weight: bold;
    color: rgb(102, 98, 98);
}